Underground leakage sources are most
common at the following locations:
2-6
Potential
Leak Site
Definition
What
to look for?
Bore
(Trench)
Cable system term used to describe
the trench or hole dug prior to bury-
ing the cable underground.
Knowing the path of
where the cable is
buried will assist you in
locating broken or dam-
aged cable sources.
Pedestal Housing-
Taps
Pedestal Housing is an environmental
protection device used to house sub-
scriber isolation units and passive dis-
tribution amplifiers in underground
CATV systems. Synonymous with
Underground Housing.
Broken or unterminated
tap ports, corroded and
water damaged taps.
Loose or damaged tap
plates, connectors, fit-
tings, or cracked cable
feeder. Water, ingress,
corroded center conduc-
tor and braid.
Malfunctioning
Terminators
A resistive load for an open coaxial
line used to eliminate reflections and
to terminate a line in its characteris-
tic impedance.
Check for wear, loose fit-
tings and corrosion.
Check quality of a termi-
nator.
Loose F-
Connectors
The F-connector is the male end con-
necting device that allows a cable
drop to be attached to a cable inlet
source (female end) tap.,spygot, etc.
Check for wear,
stripped threads, loose
fittings and corrosion.
Check quality of the
F-connector.
Loose-Fittings
Result when clamps, wire covers, etc.,
are not installed properly, have become
loose because of age, or are broken.
Cable connections that
appear loose, worn or
broken.
Poor Quality
Material
Manufacturer’s material that were
defective before they were installed.
The original plant was
installed using scraped
and perforated cable
sheaths, poorly spliced
lines, and crimped cable
with small bending
radii. Check for poor
quality materials.
To Next Page
Loading...
Need help?
General
